Organic Blind Sample Program
False Positives & False Negatives
4-N-OCTYLPHENOL
Method: 4433 Testid: 62809GCM99
Link to Individual Chart

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newdate = 05/03/17 falseneg = -0.01 newdate = 02/25/16 falsepos = 0.023 newdate = 03/14/18 CENC_VAL = 0.057 newdate = 03/13/18 CENC_VAL = 0.109 newdate = 11/29/17 CENC_VAL = 0.162 newdate = 11/27/17 CENC_VAL = 0.033 newdate = 10/26/17 CENC_VAL = 0.037 newdate = 09/27/17 CENC_VAL = 0.090 newdate = 08/16/17 CENC_VAL = 0.037 newdate = 08/15/17 CENC_VAL = 0.051 newdate = 06/29/17 CENC_VAL = 0.131 newdate = 05/25/17 CENC_VAL = 0.030 newdate = 04/14/17 CENC_VAL = 0.050 newdate = 04/12/17 CENC_VAL = 0.007 newdate = 04/11/17 CENC_VAL = 0.053 newdate = 01/10/17 CENC_VAL = 0.043 newdate = 01/06/17 CENC_VAL = 0.111 newdate = 01/05/17 CENC_VAL = 0.087 newdate = 01/05/17 CENC_VAL = 0.036 newdate = 12/07/16 CENC_VAL = 0.041 newdate = 12/07/16 CENC_VAL = 0.042 newdate = 12/06/16 CENC_VAL = 0.091 newdate = 12/05/16 CENC_VAL = 0.016 newdate = 09/28/16 CENC_VAL = 0.067 newdate = 09/28/16 CENC_VAL = 0.045 newdate = 09/26/16 CENC_VAL = 0.108 newdate = 08/25/16 CENC_VAL = 0.057 newdate = 08/10/16 CENC_VAL = 0.089 newdate = 08/09/16 CENC_VAL = 0.108 newdate = 07/14/16 CENC_VAL = 0.056 newdate = 06/14/16 CENC_VAL = 0.036 newdate = 06/13/16 CENC_VAL = 0.052 newdate = 04/16/16 CENC_VAL = 0.025 newdate = 04/15/16 CENC_VAL = 0.061 newdate = 02/24/16 CENC_VAL = 0.154 newdate = 02/24/16 CENC_VAL = 0.027 newdate = 03/14/18 REPORTING LEVEL = 0.02 newdate = 03/13/18 REPORTING LEVEL = 0.02 newdate = 03/13/18 REPORTING LEVEL = 0.02 newdate = 11/29/17 REPORTING LEVEL = 0.02 newdate = 11/29/17 REPORTING LEVEL = 0.02 newdate = 11/27/17 REPORTING LEVEL = 0.02 newdate = 11/27/17 REPORTING LEVEL = 0.02 newdate = 10/26/17 REPORTING LEVEL = 0.02 newdate = 10/26/17 REPORTING LEVEL = 0.02 newdate = 09/27/17 REPORTING LEVEL = 0.02 newdate = 09/27/17 REPORTING LEVEL = 0.02 newdate = 09/27/17 REPORTING LEVEL = 0.02 newdate = 09/27/17 REPORTING LEVEL = 0.02 newdate = 08/16/17 REPORTING LEVEL = 0.02 newdate = 08/16/17 REPORTING LEVEL = 0.02 newdate = 08/15/17 REPORTING LEVEL = 0.02 newdate = 08/15/17 REPORTING LEVEL = 0.02 newdate = 06/29/17 REPORTING LEVEL = 0.02 newdate = 06/29/17 REPORTING LEVEL = 0.02 newdate = 05/25/17 REPORTING LEVEL = 0.02 newdate = 05/25/17 REPORTING LEVEL = 0.02 newdate = 05/03/17 REPORTING LEVEL = 0.02 newdate = 05/03/17 REPORTING LEVEL = 0.02 newdate = 04/14/17 REPORTING LEVEL = 0.02 newdate = 04/14/17 REPORTING LEVEL = 0.02 newdate = 04/12/17 REPORTING LEVEL = 0.02 newdate = 04/12/17 REPORTING LEVEL = 0.02 newdate = 04/11/17 REPORTING LEVEL = 0.02 newdate = 04/11/17 REPORTING LEVEL = 0.02 newdate = 01/10/17 REPORTING LEVEL = 0.02 newdate = 01/10/17 REPORTING LEVEL = 0.02 newdate = 01/06/17 REPORTING LEVEL = 0.02 newdate = 01/06/17 REPORTING LEVEL = 0.02 newdate = 01/05/17 REPORTING LEVEL = 0.02 newdate = 01/05/17 REPORTING LEVEL = 0.02 newdate = 01/05/17 REPORTING LEVEL = 0.02 newdate = 01/05/17 REPORTING LEVEL = 0.02 newdate = 12/07/16 REPORTING LEVEL = 0.02 newdate = 12/07/16 REPORTING LEVEL = 0.02 newdate = 12/07/16 REPORTING LEVEL = 0.02 newdate = 12/07/16 REPORTING LEVEL = 0.02 newdate = 12/06/16 REPORTING LEVEL = 0.02 newdate = 12/06/16 REPORTING LEVEL = 0.02 newdate = 12/05/16 REPORTING LEVEL = 0.02 newdate = 12/05/16 REPORTING LEVEL = 0.02 newdate = 09/28/16 REPORTING LEVEL = 0.02 newdate = 09/28/16 REPORTING LEVEL = 0.02 newdate = 09/28/16 REPORTING LEVEL = 0.02 newdate = 09/28/16 REPORTING LEVEL = 0.02 newdate = 09/26/16 REPORTING LEVEL = 0.02 newdate = 09/26/16 REPORTING LEVEL = 0.02 newdate = 08/25/16 REPORTING LEVEL = 0.02 newdate = 08/25/16 REPORTING LEVEL = 0.02 newdate = 08/10/16 REPORTING LEVEL = 0.02 newdate = 08/10/16 REPORTING LEVEL = 0.02 newdate = 08/09/16 REPORTING LEVEL = 0.02 newdate = 08/09/16 REPORTING LEVEL = 0.02 newdate = 08/01/16 REPORTING LEVEL = 0.02 newdate = 08/01/16 REPORTING LEVEL = 0.02 newdate = 07/14/16 REPORTING LEVEL = 0.02 newdate = 07/14/16 REPORTING LEVEL = 0.02 newdate = 06/14/16 REPORTING LEVEL = 0.02 newdate = 06/14/16 REPORTING LEVEL = 0.02 newdate = 06/13/16 REPORTING LEVEL = 0.02 newdate = 06/13/16 REPORTING LEVEL = 0.02 newdate = 04/16/16 REPORTING LEVEL = 0.02 newdate = 04/16/16 REPORTING LEVEL = 0.02 newdate = 04/15/16 REPORTING LEVEL = 0.02 newdate = 04/15/16 REPORTING LEVEL = 0.02 newdate = 02/25/16 REPORTING LEVEL = 0.02 newdate = 02/25/16 REPORTING LEVEL = 0.02 newdate = 02/24/16 REPORTING LEVEL = 0.02 newdate = 02/24/16 REPORTING LEVEL = 0.02 newdate = 02/24/16 REPORTING LEVEL = 0.02
The SGPlot Procedure

Updated 07/31/2018

False Positive & Negative Listing for 4-N-OCTYLPHENOL

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Negative 20171090002 Supelco LC20139V: 40 µl & Abs 061716WW: 40 µl 0.02 05/03/17 < 0.031 0.05
False Positive 20160490032 ERA 0406-15-02: 20 µl & Spex Organics EN150529012: 20 µl 0.02 02/25/16 E 0.023 0

Updated 07/31/2018